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1 December 2002 The Food Composition of Immature and Non-breeding White Storks in Poland
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Abstract
The food of immature White Storks (Ciconia ciconia) feeding in meadows in Poland was studied by pellet analysis. The most important food items by numbers were insects, mainly beetles, which constituted 83% of all prey items (N = 5,958 items) and were found in all pellets (N = 163). However, by biomass, 58% of food consisted of small mammals, mainly voles Microtus sp. Insects (22%) and earthworms (11.5%) were secondary resources. Literature on White Stork diet in Europe also showed that voles, insects and earthworms were the dominant food of breeding White Storks. Their roles changed with latitude, habitat, time, as well as method of data analysis. Generally, the diet of non-breeding storks was similar to breeding birds, but more of the prey was obtained in dry habitats.
Marcin Antczak, Szymon Konwerski, Seweryn Grobelny and Piotr Tryjanowski "The Food Composition of Immature and Non-breeding White Storks in Poland," Waterbirds 25(4), (1 December 2002). https://doi.org/10.1675/1524-4695(2002)025[0424:TFCOIA]2.0.CO;2
Received: 6 March 2002; Accepted: 1 July 2002; Published: 1 December 2002
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